Gas-heater.



No. 798,801. PATENTED SEPT. 5, 1905. J. KNOBRNSGHILD. GAS HEATER APPLIUATION FILED FEB. 15.1904.

UNITED STATES .PATENT OFFICE.

JAoOB KNOERNSOHILD, OE MIInvAUKEE, wISooNsiN, AssuiiNoR OE ONE- HALE To GEORGE A. PARKER, OE MILWAUKEE, wiseoNsiN; EDWARD A. BENSON .ADMINISTRATOR or SAID GEORGE A. PARKER, DEOEASED.

No. 798,801. Specification of Letters Patent. Patented Sept. 5, 1905.

Application filed February 15, 1904. Serial No. 193,580.

T 1U 707/110711/ WWZ/ COUP/07%' fr, and one ot' the columns is formed or pro- Beit knownthatl, JACOB KNoERNsoIIILD, a vided at the top with an outlet opening or citizen of the United States, residing' at Mil- Connection gy. The inlet and outlet openings y waukee, in the county of Milwaukee and State may be arranged, as shown, in connection 55 ot' l/Visconsin, have invented certain new and with the same column, or with a slightlyuseful Improvements in Gas-Heaters, of which modified arrangement of the cross-tubes and the following is a specification, reference bepartitions they may be arranged in connecing had to the accompanying drawings, formtion with different columns, So that air will ing a part thereof. enter the heater at the bottom of one column 60 IO This invention relates to heaters designed and the waste gases or products ot' combusto burn gas and to warm the air of rooms. tion will escape at or near the top of the other rlhe main objects of the invention are to secolumn. The lower tube b is provided at or eu re greater heatingcapacity and economy of near the center with an opening and a mica fuel, to prevent the contamination of the air door /zy for lighting the burner and observing 63 I5 of the room in which the heater is located, its operation.

and generally to improve the construction and The burner, which is of the Bunsen type, operation ot heaters of this class. consists ot' a long tube z, passing' through one 1t consists in certain novel features of concolumn a into the lower tube and terminatstruction and in the peculiar arrangement and ing at its inner end opposite or near the door 70 2O combinations oi' partshereinafter particularly 71 a mixing-chamber j, having adjustable described, and pointed out in the claims. air-inlet openings at the outer end of the tube,

In the accompanying' drawings like letters and a gas-nozzle provided with a cock Z designate the same parts in the several ligand projecting axially through the mixingures. chamber to a point in or near the outer end 75 Figure l is a View, partly in front elevation of the burner-tube.

and partly in vertical longitudinal section, of The radiator may be constructed either ot' a heater embodying my invention. Fig. 2 is cast or sheet metal or in part otl sheet nieta] an end elevation and vertical cross-section on and in part ot' cast metal. Preferably the upthe line 2 2, Fig. l, showing the condenser rights or columns and the top and bottoin 8O associated with the radiator; and Fig. 3 is a pieces will be cast and the cross-tubes will be sectional View on the line 3 3, Fig. 2, showmade otl sheet metal to more readilytransmit ing the detail construction ot' the condenser. to the outside air the heat ot' the Haine and The radiator consists generally ot' two holgases passing through theni'. low or tubular upriglits or columns a, conrlo avoid the loss of heat incident to the use 85 nected by cross tubes or lilies arranged one of an ordinary chimney or smoke-flue connecabove another, and is mounted upon a suittion and to prevent vitiating the air by disable base c and siirmounted by an open-work charging the products oi' combustion into the top plate (l, giving the heater an appearance room in which the heater is located, a conapproximating that of a steaiii-radiator. denser is connected with the outlet g of the 90 40 The upriglits or columns a are formed or radiator. The condenser, which .is preferprovided with alternating cross walls or parably located behind and hidden by the radiatitions c, which are so arranged as to caiise tor, consists of a horizontal reservoir-pipem, the hot gases and products of combustion to supported by brackets n a on the base c and pass back and forth in opposite directions connected at one end by a vertical pipe o 95 through the adjacent tubes and the comwith the outlet from the radiator and at the partmeiits formed by said partitions in the other end by an ascending sinuous escapecolunins a. from the lower to the upper pai't pipe p with a chimney, smoke-tine, ventilator of the radiator, as indicated by arrows on shaft or pipe leadingl and opening tothe out- Fig. 1. side atmosphere. The straight parts or' the 100 An air-inlet openingfis provided in the pipe p are pitched downward sutiiciently to base at the lower end of one ot' the columns insure the drainage ot' the water of condensation into the pipe m, which is provided with a cock q or other connection for drawing' or conducting ofl'1 either at intervals or continuously the water which collects therein.

A shield or partition r, constructed wholly or partially of some suitable non-conductor of heat, such as asbestos, is interposed between the radiator and condenser and prevents the former from heating the latter and detrimentally affecting its operation.

The radiator possesses advantages as a heater independently of the condenser and may under certain conditions be used without it by connecting the outlet g directly with a chimney or other escape-flueleading to the outside atmosphere; but ordinarily its operation will be found to be more economical and satisfactory in connection with the condenser.

The operation of the heater may be briefly explained as follows: The burner is lighted by opening the door /L and is regulated by means of the cock Z and the valve controlling the air-inlet openings in the mixer j, the iame being observed through said door. The heat developed by the combustion of the gas produces an upward current, as indicated by arrows on Fig. 1, back and forth through the cross-tubes drawing air into the heater through the opening f in the base and discharging the products of combustion through the outlet connection g at the top of the heater into the condenser. In their zigzag or sinuous course through the heater the hot gases and products of combustion transfer their heat to the columns c and tubes b, which have a large total area and communicate their heat by convection and radiation to the surrounding' air and adjacent objects. All the available heat developed by the combustion of the gas is thus absorbed by the extended metal surfaces, with which the hot gases and products of combustion come in contact in their course through the heater, and is communicated to the surrounding air and adjacent objects with the least possible loss. The waste products of combustion escaping from the heater in the form of steam mingled with carbonic-acid gas and nitrogen. are directed downward through the pipe 0 into the reservoir-pipe m, from which uncondensed vapor and waste gases pass into the escape-pipe p. The extended cooling-surface aorded by the pipes 0, m, and p causes the steam to condense in its passage'through them, `thereby tending to produce a vacuum therein and to maintain the upward draft through the radiator. The water formed by the condensation of steam collects in the reservoir-pipe m, from which it is drawn ofi' from time to time through the cock q, or may be continuously discharged through a suitable connection with a sewer or drain. The carbonic-acid gas, nitrogen, and any noxious gases entrained with lsteam from the radiator into the condenser,

parting with heat and moisture during their sinuouspassage through the condenser, are finally discharged from the upper end of the escape-pipe p into the chimney or other wasteiiue. the draft of the heater to avoid the loss of heat incident to the use of the ordinary chimney or smoke-flue connection and to prevent vitiating the air of the room in which the heater is located.

The columns c and cross-tubes b may be inclined more or less from the vertical and horizontal positions in which they are shown, and

their number, shape, and sizemay be varied within certain limits without materially affecting the operation of the heater. In short, various modifications in the minor details of construction and in the arrangement of the component parts of the device may be made within the intended scope of my invention.

I claim- 1. In a gas-heater, the combination of tu bular columns divided by partitions into alternating compartments, cross-tubes connecting vsaid compartments in series and forming therewith a sinuous passage from an inletopening in the lower part of the heater to an outlet-opening in the upper part thereof, and.

a tubular burner passing transversely through one of said columns into the lower cross-tube and provided outside of said column with an air-supply opening and a gas-supply connection, substantially as described.

2. In a gas-heater, the combination of a radiator having an air inlet opening and an outlet opening and provided with ra suitable burner, and a condenser connected with said outlet-opening and having a gas-escape opening or connection at or near the top and a liquid -escape opening or connection at or near the bottom, substantially as described.

3. In agas-heater, the combination of a radiator provided with a burner and having an air inlet and an outlet, a condenser connected with said outlet and having a gas-outlet at or near the top and a liquid-waste connection at or near the bottom, and a non-conductor-ofheat shield interposed between said radiator and condenser, substantially as described.

1t. In agas-heater, the combination ofa radiator provided with ay burner, an air inlet opening and an outlet opening, and a condenser consisting of a water reservoir or receptacle connected with said outlet-opening and provided with a liquid-discharge connection, and a sinuous gas-escape pipe leading upwardly from said reservoir, substantially as described.

5. In agas-heater, the combination of a radiator comprising tubular columns divided by partitions into alternating compartments and cross-tubes connecting said compartments lin series and forming therewith a sinuous passage from an inlet-opening in the lower part The condenser thus serves to maintain IOO lIO

IZO

of the heater to an outlet-opening in the up- In witness whereof I hereto affix my signaper part thereof, and a condenser consisting ture in presence of two wiLness. oi a water reservoir or receptacle connected JACOB KNOERNSCHILD with said outlet-opening and provided with a 5 liquid-discharge con neotion and a sinuous gasescape pipe leading upwardly from said reservoir, substantially as described.

Witnesses:

(JI-IAS. L. Goss, CHARLES KNoERNsomno. 

